Lecture Training Chair with Writing Pad Wheel Plastic Conference Office Chair. Customizable Components: Back, seat, leg, and size can be customized according to specific requirements. Ergonomic Lumbar Support: Features elastic adaptive fixed lumbar support for enhanced comfort during long sessions. Silent Anti-Vibration Wheels: Equipped with 60mm luxury silent anti-vibration castors for smooth and quiet movement. Foldable Design with Tray: Foldable structure with a tablet that turns 180 degrees for convenient writing and storage. Durable Construction: Built with 1.5mm thickness black coating legs and a 350 square steel tube base for stability. Long-Term Warranty: Comprehensive warranty coverage ranging from 3 to 5 years for peace of mind. High Production Capacity: Supply ability of 50,000 pieces per month ensures timely delivery for large orders. Established Manufacturer: 18-year brand with experienced R&D team and advanced production machinery.